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SUMMARY:Thermal Conductivity in Quantum Materials Research - Prof. Robert 
 Hill\, Department of Physics and Astronomy\, University of Waterloo
DTSTART:20180124T111500Z
DTEND:20180124T123000Z
UID:TALK98257@talks.cam.ac.uk
CONTACT:Romy Hall
DESCRIPTION:Thermal conductivity measurements constitute a bulk and direct
 ional probe of all delocalized excitations in materials.  The dependence o
 f the conductivity on temperature and magnetic field can be used to identi
 fy novel excitations and phase transitions in quantum materials.  In this 
 talk\, I will describe how measurements are made at ultralow temperatures 
 and present results on so-called 'spin-ice' materials whose elementary exc
 itations are analogous to mobile magnetic monopoles.  Our study includes s
 ome interesting observations on the effects of disorder on these materials
 .
LOCATION:Mott Seminar Room (531)\, Cavendish Laboratory\, Department of Ph
 ysics
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